基于小波的免疫数字水印算法
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摘要
本文提出了一种基于小波域的免疫数字水印算法,详细论述了该算法的水印嵌入、提取和抗攻击过程,分析了嵌入深度对免疫性和自恢复性的影响,给出了免疫图像和自恢复图像在不同嵌入深度下峰值信噪比的对比曲线,得到了嵌入深度的最佳范围。仿真结果验证了该算法的有效性、免疫性、自恢复性和安全性。
In this paper, an immune digital watermarking algorithm based on wavelet domain is proposed. The process of watermark embedding, extracting and resisting attack is discussed in detail. The influence of embedding depth on immunity and self-recovery is analyzed. The contrast curves of peak signal to noise ratio of immune image and self-recovery image under different embedding depth are given, and the optimum range of embedding depth is obtained. The simulation results verify the effectiveness, immunity,self-recovery and security of the algorithm.
In this paper, an immune digital watermarking algorithm based on wavelet domain is proposed. The process of watermark embedding, extracting and resisting attack is discussed in detail. The influence of embedding depth on immunity and self-recovery is analyzed. The contrast curves of peak signal to noise ratio of immune image and self-recovery image under different embedding depth are given, and the optimum range of embedding depth is obtained. The simulation results verify the effectiveness, immunity,self-recovery and security of the algorithm.
引文
[1]钮心忻.信息隐藏与数字水印[M].北京邮电出版社,2004.
[2]尹浩,林闯等.数字水印技术综述[J].计算机研究与发展.2005,42(7):1093-1099.
[3]王也隽.信息隐藏技术及其军事应用[M].北京:国防工业出版社,2011
[4]杨义先,钮心忻.数字水印理论与技术[M].高等教育出版社,2006:1-5.
[2]尹浩,林闯等.数字水印技术综述[J].计算机研究与发展.2005,42(7):1093-1099.
[3]王也隽.信息隐藏技术及其军事应用[M].北京:国防工业出版社,2011
[4]杨义先,钮心忻.数字水印理论与技术[M].高等教育出版社,2006:1-5.